Building Vector Similarity Search in PostgreSQL with pgvector

# Vector Similarity Search: Finding What You Mean, Not Just What You Say Traditional search only works when you type the exact words a database contains, but new technology called vector similarity search understands *what you're trying to find* even when you describe it in everyday language. For example, instead of needing to know a product is called a "smartphone," you could search for "device I can use to make calls and check email" and get the right results. This shift means companies can finally help customers find what they need without forcing them to guess the right keywords.